cbq: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/sbin/cbq - from package: iproute

You may install the required package with command yum install {package}

Error in other languages:
cbq: bevel nie gevind nie
cbq: comandă negăsită
cbq: comando não encontrado
cbq: commande introuvable
cbq: command not found
cbq: käsku ei ole
cbq: không tìm thấy lệnh
cbq: komanda nerasta
cbq: Kommando nicht gefunden.
cbq: kommandot finns inte
cbq: komut yok
cbq: nie znaleziono polecenia
cbq: níor aimsíodh an t-ordú
cbq: no se encontró la orden
cbq: no s'ha trobat l'ordre
cbq: opdracht niet gevonden
cbq: parancs nem található
cbq: perintah tidak ditemukan
cbq: príkaz nenájdený
cbq: příkaz nenalezen
cbq: команда не найдена
cbq: командата не е открита
cbq: 命令找不到
cbq: コマンドが見つかりません